package com.hmdp.service.impl;

import com.hmdp.dto.Result;
import com.hmdp.entity.ShopType;
import com.hmdp.mapper.ShopTypeMapper;
import com.hmdp.service.IShopTypeService;
import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
import org.springframework.data.redis.core.RedisTemplate;
import org.springframework.data.redis.core.StringRedisTemplate;
import org.springframework.stereotype.Service;

import javax.annotation.Resource;

import java.util.List;
import java.util.stream.Collectors;

import static com.hmdp.utils.RedisConstants.CACHE_SHOPTYPE_KEY;

/**
 * <p>
 *  服务实现类
 * </p>
 *
 * @author 虎哥
 * @since 2021-12-22
 */
@Service
public class ShopTypeServiceImpl extends ServiceImpl<ShopTypeMapper, ShopType> implements IShopTypeService {

    @Resource
    private RedisTemplate redisTemplate;

    @Override
    public Result queryTypeList() {
        Long size = redisTemplate.opsForList().size(CACHE_SHOPTYPE_KEY);
        if (size != null && size > 0) {
            List<String> list = redisTemplate.opsForList().range(CACHE_SHOPTYPE_KEY, 0, -1);
            return Result.ok(list);
        }
        List<ShopType> typeList = query().orderByAsc("sort").list();
        if (typeList == null) {
            return Result.fail("店铺类别查询失败");
        }
        redisTemplate.opsForList().rightPushAll(CACHE_SHOPTYPE_KEY, typeList);
        return Result.ok(typeList);
    }
}
